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- W2148927039 abstract "Three kinds of OH-terminated polylactides were synthesized by the ring-opening polymerization of lactide, with an alcohol such as dodecanol, glycerol, or pentaerythritol, in the presence of stannous octoate. Moreover, Cl-, NH2-, and COOH-terminated polylactides were synthesized from OH-terminated polylactides. The end groups of the polylactides were identified by 1H NMR and 13C NMR. According to thermal analysis, the cold crystallization temperatures of Cl-, NH2-, and COOH-terminated polylactides were higher than those of OH-terminated polylactides. The thermal stability of OH-terminated polylactides was poor, whereas NH2- and Cl-terminated polylactides were more resistant to thermal degradation. In a hydrolysis degradation test, the mass and molecular weight loss of COOH-terminated polylactides were high, whereas those of Cl- and NH2-terminated polylactides were much lower. These end-group effects were increased with an increasing number of chain arms. © 2001 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 39: 973–985, 2001" @default.
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- W2148927039 date "2001-01-01" @default.
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- W2148927039 title "Synthesis and degradation of end-group-functionalized polylactide" @default.
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- W2148927039 doi "https://doi.org/10.1002/1099-0518(20010401)39:7<973::aid-pola1073>3.0.co;2-8" @default.
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